NG2U, NG3U, NG4U

Inclinometers of high measuring accuracy with an integrated 0.5V ... 4.5V signal conditioner for inclination measurement in the ranges of ±10, ±30 and ±80 degrees

datasheet

Features

normalized 0.5 ... 4.5V output signal
electronic compensation of the temperature drift of the sensitivity
non-regulated supply voltage in range of 9V ... 30V
integrated sensor electronics including signal conditioner
linear output characteristics
high measurement accuracy
minimal linearity deviation
high long-term stability
hysteresis free output signal
no interference by ambient electromagnetic fields
shockproof as without moving mechanical parts
hermetically sealed
sensor electrically isolated from point of measurement - no ground connections
zero point adjustable through 360° using clamping ring
EMC certified

Description

The NG2U, NG3U and NG4U are capacitive, liquid based inclinometers with integrated sensor electronics and signal conditioner. Electronic temperature compensation makes up for the temperature drift of the sensitivity of the primary transformer. An integrated, highly stable voltage regulator ensures stable operation for a range of supply voltages. The measurement technique provides a linear relationship between the angle to be measured (up to (80 degrees for the NG4U) and the output signal that is calibrated during manufacture. The measuring time constant can be matched to the requirements of the measurement task by appropriate hardware programming.

Application

The inclinometers NG2U, NG3U and NG4U are suited for applications requiring high measurement accuracy with low linearity deviation, low temperature sensitivity and high long-term stability for measurement of large inclination angles, returning a large output signal while using a non-regulated supply voltage. For particularly harsh operating conditions, we recommend the sensor casing XB1U or SB1U with the same outputs or the casing XB1S or SB1S featuring additional switch outputs. These inclinometers have their application in areas such as construction, mining, vehicles, aircraft, ships, surveying equipment, transportation and conveyor systems and process automation as well as safety engineering.

Specifications

Type	NG2U	NG3U	NG4U
Measuring range	±10 degrees	±30 degrees	±80 degrees
Resolution	<0.001 degrees	<0.003 degrees	<0.01 degrees
Normalized sensitivity (other normalizations on request)	200 mV/degree	66.67 mV/degree	25 mV/degree

Type	NG2U
Measuring range	±10 degrees
Resolution	<0.001 degrees
Normalized sensitivity (other normalizations on request)	200 mV/degree

Type	NG3U
Measuring range	±30 degrees
Resolution	<0.003 degrees
Normalized sensitivity (other normalizations on request)	66.67 mV/degree

Type	NG4U
Measuring range	±80 degrees
Resolution	<0.01 degrees
Normalized sensitivity (other normalizations on request)	25 mV/degree

Shared specifications
Dimensions	see dimension drawing
Linearity deviation	<0.1% of measuring range
Transverse sensitivity	<0.5% at 45° tilt [TBD]
Settling time	approx. 0.3 seconds (1s, 2s, 3s optional)
Temperature drift of sensitivity	approx. -0.005(8)%/K
Temperature drift of zero point	approx. 0.001(5)°/K
Supply voltage U_b	9V ... 30V (optional 5V, regulated)
Output voltage offset for sensor zero position	2.5V
Current drawn	approx. 6mA
Degree of protection	IP65
Operating temperature	-40°C ... +85°C
Storage temperature	-45°C ... +90°C
Weight (without clamping ring or cable)	approx. 111g
Electrical connection	• 0.5m shielded cable Ø4.6mm, 4-wire • special lengths on request

• Each sensor is calibrated after production. It is delivered with an individual calibration record that includes the precise offset and sensitivity values, the static characteristic curve and the linearity deviation curve.
• On request: special measuring range

Dimensions (in mm) and Connections

Attention! Do not short circuit the supply voltage (9 bis 30V) with one of the outputs.